MWS Challenge Review Questions
with Accurate Answers
"C" in the formula FL=Qˆ2 represents the correct answer Hose diameter
coefficient
A priming device works by correct answer Creating a partial vacuum
According to the NFPA 1901, a discharge pressure relief valve must operate within
correct answer 10 seconds after discharge pressure rises 30 psi above the set
level
All of the following are important reasons for maintaining inspection
documentation on an MWS apparatus EXCEPT correct answer Verifying that you
are inspecting the correct apparatus
All of the following are methods of water discharge used at the dump site EXCEPT:
correct answer Draining
All of the following are potential water sources for an apparatus fire pump
EXCEPT correct answer A municipal storm drain
All of the following are types of portable water tanks EXCEPT correct answer
Locking tanks
All of the following factors must be included when determining the total pressure
loss (TPL) EXCEPT correct answer Pump pressure loss
,All of the following statements about driving a MWS apparatus through areas of
restricted horizontal and vertical clearances are true EXCEPT correct answer Use
the appropriate turn signal
All of the following statements about static water sources are true EXCEPT correct
answer The static water source closest to the incident should always be used first
Allowing a MWS apparatus engine to idle over an extended period of time can
lead to all of the following except correct answer Engine fatigue
As operations proceed during water shuttles, make and break personnel at the fill
site should monitor correct answer Ground conditions
At a fill site, a cone or similar device is used to correct answer Mark the stopping
point for a MWS apparatus
At a water shuttle operation, the amount of water dumped is the amount of
water the tank holds less correct answer 10%
At a water shuttle operation, the second and subsequent mobile water supply
apparatuses may leave the dump site once correct answer Their entire load has
been dumped
Before driving over a guarded railroad crossing during an emergency response
correct answer Look both right and left and proceed cautiously
, During an MWS apparatus inspection, the lowest acceptable fuel gauge reading is:
correct answer at least 3/4 full
During the pre-service hydrostatic test, each pump is hydrostatically tested at a
minimum of: correct answer 500 psi over the pump's designed maximum
operating pressure for 10 minutes
During the set up of multiple water tanks as a water shuttle operation, the second
portable tank is filled correct answer After the first tank is full and in use
During the vacuum service test, the system vacuum and pump priming decide
should achieve a column of mercury of at least: correct answer 22 inches
Fill site pumpers should have a minimum pump capacity of correct answer 1,000
gpm
For fill site operations to be successful, it is suggested that you use: correct
answer A pumper at a hydrant to fill the MWS apparatus
Hard suction hoses are noted for their correct answer Resistance to collapsing.
How much larger should a portable water tank used in a water shuttle operation
be than the water tank of the mobile supply apparatus carrying it? correct answer
500 gallons
Identify FOUR of the steps for completing a left turn with a MWS apparatus on a
four-lane highway correct answer Activate the left turn signal
with Accurate Answers
"C" in the formula FL=Qˆ2 represents the correct answer Hose diameter
coefficient
A priming device works by correct answer Creating a partial vacuum
According to the NFPA 1901, a discharge pressure relief valve must operate within
correct answer 10 seconds after discharge pressure rises 30 psi above the set
level
All of the following are important reasons for maintaining inspection
documentation on an MWS apparatus EXCEPT correct answer Verifying that you
are inspecting the correct apparatus
All of the following are methods of water discharge used at the dump site EXCEPT:
correct answer Draining
All of the following are potential water sources for an apparatus fire pump
EXCEPT correct answer A municipal storm drain
All of the following are types of portable water tanks EXCEPT correct answer
Locking tanks
All of the following factors must be included when determining the total pressure
loss (TPL) EXCEPT correct answer Pump pressure loss
,All of the following statements about driving a MWS apparatus through areas of
restricted horizontal and vertical clearances are true EXCEPT correct answer Use
the appropriate turn signal
All of the following statements about static water sources are true EXCEPT correct
answer The static water source closest to the incident should always be used first
Allowing a MWS apparatus engine to idle over an extended period of time can
lead to all of the following except correct answer Engine fatigue
As operations proceed during water shuttles, make and break personnel at the fill
site should monitor correct answer Ground conditions
At a fill site, a cone or similar device is used to correct answer Mark the stopping
point for a MWS apparatus
At a water shuttle operation, the amount of water dumped is the amount of
water the tank holds less correct answer 10%
At a water shuttle operation, the second and subsequent mobile water supply
apparatuses may leave the dump site once correct answer Their entire load has
been dumped
Before driving over a guarded railroad crossing during an emergency response
correct answer Look both right and left and proceed cautiously
, During an MWS apparatus inspection, the lowest acceptable fuel gauge reading is:
correct answer at least 3/4 full
During the pre-service hydrostatic test, each pump is hydrostatically tested at a
minimum of: correct answer 500 psi over the pump's designed maximum
operating pressure for 10 minutes
During the set up of multiple water tanks as a water shuttle operation, the second
portable tank is filled correct answer After the first tank is full and in use
During the vacuum service test, the system vacuum and pump priming decide
should achieve a column of mercury of at least: correct answer 22 inches
Fill site pumpers should have a minimum pump capacity of correct answer 1,000
gpm
For fill site operations to be successful, it is suggested that you use: correct
answer A pumper at a hydrant to fill the MWS apparatus
Hard suction hoses are noted for their correct answer Resistance to collapsing.
How much larger should a portable water tank used in a water shuttle operation
be than the water tank of the mobile supply apparatus carrying it? correct answer
500 gallons
Identify FOUR of the steps for completing a left turn with a MWS apparatus on a
four-lane highway correct answer Activate the left turn signal
